Antifriction-bearing.



No. 627,551. Patented June 27, I899.

a, VIDLUND. ANTIFRICTION BEARING.

(Application filed Sept. 2, 1898.

(No Model.)

ATTORNEYS. I

, UNITED STATE-s PATENT OFFICE.

GUSTAV VIDLUND, OF PHILADELPHIA, PENNSYLVANIA.

ANTl F RlCTlO N -BEAR|NG.

SPECIFICATION forming part of Letters Patent No. 627,551, dated June 27,1899.

Application filed September 2, 1898. Serial No. 690,089. (No model.)

To all whom it may concern:

Be it known that I, GUSTAV VIDLUND, a subject of the King of Sweden andNorway, (having resided in the United States one year last past andhaving declared my intention of becoming a citizen thereof,) residing inthe city and county of Philadelphia,State of Pennsylvania, have inventeda new and useful Improvement in Antifriction-Bearings for Pulleys, &c.,which improvement is fully set forth in the following specification andaccompanying drawings.

My invention consists of a pulley, &c., having an antifriction-bearingfor a stationary shaft or axle, on which said wheel is mounted, saidbearing consisting of a skeleton frame formed of rollers, annuli inwhich the ends of 7 said rollers are mounted, and means for connectingsaid annuli, so that they rotate as one, said frame being freely mountedin a bushing which is fixed within the hub of the pulley, so that saidantifriction-bearing rotates independently of the pulley at a loss rateof speed, so that there is reduced friction on the shaft or axle. Thebearing is also formed of metal superior to that of the body of thepulley, &c. thus increasing the durability of the latter without theexpensiveness of an entire body formed of said superior metal.

Figure 1 represents an end view of anantifriction-bearing for a pulleyembodying my invention. Fig. 2 represents a longitudinal section thereofon line w 00, Fig. 1, including a diametrical section of the pulley.Fig. 3 represents a perspective view of a bushing, within which thebearing is mounted. Fig. at represents a perspective view of a portionof the bearing.

Similar letters of reference indicate corresponding partsin the figures.

Referring to the drawings, A designates a pulley which, excepting thefeatures of my invention applied thereto, is of ordinary construction. y

B designates a bushing which is firmly retained within the hub of thepulley, so as to rotate as one therewith, the bushing having in itsinterior, at its ends, the shoulders (3, which extend in the peripheraldirection of said bushing.

D designates annuli which freely occupy the opposite shoulders C of thebushing 13 at the ends of the latter and have freely mounted in them theseries of rollers E E, it being noticed that the circumferential wallsof the openings E in the annuli to receive the rollers are cut away oropen at the inner circum ferences of the annuli, so that portions of theperipheries of the rollers D enter the central spaces of the annuli, soas to contact with the shaft or axle on which the pulley is mounted,

said shaft or axle and portions of journal boxes or' bearings thereforbeing shown in dotted lines, Fig. 2.

The annuli are connected by the bolts or rods F F, which are headed orotherwise secured to said annuli, whereby the latter'rotate as one onthe bushing, it being seen that said annuli cannot separate, owing totheir retention by the bolts or rods F, nor come together or close,owing to the shoulders C, it being also noticed that the annuli,rollers, and rods form a skeleton frame which may rotate intactwithinthebushing, while the outer walls of the openings E preventlateral displacement of the rollers and dispense with sides of saidslots and forming solid bearings for the end thrusts of therollers.

' In the'hub portion of the pulley is the port leading to the channel Jon the interior of said hub, said channel being in communication withthe ducts K in the wall of the bush- G, which is closed by the plug H,said port ing 13, it being seen that when the plug or 7 stopper H isremoved oil or lubricant maybe admitted through the port G to thechannel J and from thence directed through the ducts K to the interiorof the bushing and so reach the rollers, annuli, a'nd shoulders, wherebythe parts of the skeleton frame may be nicely lubricated as it rotateswithin the bushing, it being also seen that-as said frame rotates itsspeed is much less than the pulleys, and thus the friction on the shaftis reduced and wear of parts lessened, while the pulley runs smoothly,easily, and comparatively noiseless on its bearings. It will also benoticed that when the frame is primarily connected with the bushing thelatter is forcibly driven into the hub, so as to be a fixture thereof,when the frame may receive the shaft or axle of the pulley and rotatetherein, while the pulley is adapted to rotate at a greater rate ofspeed independent, of course, of said frame.

The bushing and frame will be formed of metal superior to that of thebody of the pulley, whereby the durability of the latter is increased.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. An antifriction-bearing for a wheel consisting of annuli therein, androllers mounted in said annuli, the latter having slots in the innerfaces thereof, open at the inn-erciroumferenccs of the annuli and wallson the outer being formed of metal superior to that of the body of saidwheel.

GUSTAV VIDLUND. Witnesses:

ROBERT ARNER, E. M. VIDLUND.

